---
title: "Multisig (Multi-signature)"
url: "https://www.unknowngravity.com/en/glosario/multisig-multifirma"
site: Unknown Gravity
published: "2026-09-21T11:55:12+00:00"
modified: "2026-09-21T11:55:14+00:00"
language: en-US
description: "A multisig wallet requires several signatures to move funds: for example, 2 of 3 keys, or 3 of 5. No single person can empty the box — nor can an attacker who steals a single key."
section: "Home > Multisig (Multi-signature)"
---

# Multisig (Multi-signature)

GLOSSARY · BLOCKCHAIN & WEB3

What a multi-signature (multisig) wallet is: several keys to authorise each movement, M-of-N schemes and when to use one in a company.

WHAT IS IT? · FOR DUMMIES

A **multisig** wallet requires several signatures to move funds: for example, 2 of 3 keys, or 3 of 5. No single person can empty the box — nor can an attacker who steals a single key. It is the crypto equivalent of the joint signature that companies have always used.

WHAT IS IT? · PRO

M-of-N schemes spread the keys across people, devices or entities: thresholds are set by amount, duties are separated (whoever proposes does not approve) and key succession is planned (loss, a partner leaving, contingency). It is the minimum standard of a serious corporate crypto treasury, alongside its modern alternative, [MPC](/en/glosario/mpc-computacion-multiparte) — where the key never exists in one piece.

Multisig protects against stolen keys, not against deceived signers: if two signers approve a fraudulent transaction they did not review, the scheme worked and the money left anyway. Processes and limits matter as much as cryptography — the principle we repeat in [crypto-asset custody](/en/articulos/crypto-asset-custody).

## 01 / Key points

- Several signatures (M-of-N) to authorise each movement
- Removes the single point of failure of one key
- Requires design: thresholds, separation of duties, key succession
- Minimum standard of a corporate crypto treasury

## 02 / Advantages

- Stealing one key is not enough to drain the funds
- Verifiable on-chain governance of who approves
- No dependence on a custodian if self-managed

## 03 / Disadvantages

- Slower operations: each signature is a step
- Does not protect against unreviewed signatures (social engineering)
- Loss of quorum if too many keys are lost

This entry is informative. It is not legal, tax or investment advice. The rules cited change: check the current version on [BOE](https://www.boe.es) and [EUR-Lex](https://eur-lex.europa.eu).